Method and apparatus for coding an image
US5101446A · kind A · utility
131Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | May 31, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for coding an image or other two-dimensional data array to provide a sequence of images having differing spatial frequency content is disclosed. The method generates the output images by taking weighted sums of the pixels in the input image. The weights are sets of two-dimensional irreducible scaling and wavelet coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.